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http://dx.doi.org/10.5690/kjtcs.2010.43.6.588

Tumorigenesis after Injection of Lung Cancer Cell Line (SW-900 G IV) into the Pleural Cavity of Nude Mice  

Park, Eok-Sung (Department of Thoracic and Cardiovascular Surgery, Gospel Hospital, College of Medicine, Kosin University)
Kim, Song-Myung (Department of Thoracic and Cardiovascular Surgery, Gospel Hospital, College of Medicine, Kosin University)
Kim, Jong-In (Department of Thoracic and Cardiovascular Surgery, Gospel Hospital, College of Medicine, Kosin University)
Publication Information
Journal of Chest Surgery / v.43, no.6, 2010 , pp. 588-595 More about this Journal
Abstract
Background: Base on types of tumor, the types of expressed tumor is diverse and the difference in its expression rate is even more various. Due to such reasons an animal model is absolutely needed for a clinical research of lung cancer. The author attempted oncogenesis by cultivating a cell line of non-small cell carcinoma and then injecting it inside thoracic cavities of nude mice. The author conducted quantitative analyses of HER2/neu tumor gene - an epidermal growth factor receptor (EGFR) related to lung cancer, and TGF-${\beta}_1$, which acts as a resistance to cell growth inhibition and malignant degeneration. In order to investigate achievability of the oncogenesis, histological changes and the expression of cancer gene in case of orthotopic lung cancer is necessary. Material and Method: Among 20 immunity-free male BALB/c, five nude mice were selected as the control group and rest as the experimental group. Their weights ranged from 20 to 25 gm (Orient, Japan). After injection of lung cancer line (SW900 G IV) into the pleural cavity of nude mice, They were raised at aseptic room for 8 weeks. HER2/neu was quantitatively analyzed by separating serum from gathered blood via chemiluminiscent immunoassay (CLIA), and immunosandwitch method was applied to quantitatively analyze TGF-${\beta}_1$. SPSS statistical program (SPSS Version 10.0, USA) was implemented for statistical analysis. Student T test was done, and cases in which p-value is less than 0.05 were considered significant. Result: Even after lung cancer was formed in the normal control group or after intentionally injected lung cancer cell line, no amplification of HER2/neu gene showed reaction. However, the exact quantity of TGF-${\beta}_1$ was $28,490{\pm}8,549pg/mL$, and the quantity in the group injected with lung cancer cell was $42,362{\pm}14,449pg/mL$, meaning 1.48 times highly Significant (p<0.483). It proved that HER2/neu gene TGF-${\beta}_1$ had no meaningful interconnection. Conclusion: TGF-${\beta}_1$ gene expressed approximately 1.48 times amplification in comparison to the control group. The amplification of TGF-${\beta}_1$ meant somatic recuperation inhibition mechanism due to carcinogenesis in nude mice was definitely working. It may be implemented as a quantitative analysis that allows early detection of lung cancer in human body.
Keywords
Carcinoma; non-small cell; lung; Mice; transgenic; Neoplasm marker;
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Times Cited By KSCI : 4  (Citation Analysis)
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